52421022401 has 32 divisors (see below), whose sum is σ = 66508646400. Its totient is φ = 40644046080.

The previous prime is 52421022383. The next prime is 52421022449. The reversal of 52421022401 is 10422012425.

It is not a de Polignac number, because 52421022401 - 2⁶ = 52421022337 is a prime.

It is a super-2 number, since 2×52421022401² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52421022481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239021 + ... + 402458.

It is an arithmetic number, because the mean of its divisors is an integer number (2078395200).

Almost surely, 2^52421022401 is an apocalyptic number.

It is an amenable number.

52421022401 is a deficient number, since it is larger than the sum of its proper divisors (14087623999).

52421022401 is a wasteful number, since it uses less digits than its factorization.

52421022401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641549.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 52421022401 its reverse (10422012425), we get a palindrome (62843034826).

The spelling of 52421022401 in words is "fifty-two billion, four hundred twenty-one million, twenty-two thousand, four hundred one".